The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 18, 2019
Filed:
Dec. 08, 2015
Topy Kogyo Kabushiki Kaisha, Tokyo, JP;
Topy Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A multi-piece rim structure for a wheel includes a rim base, a bead seat ring(ring member) and a lock ring. The bead seat ringreceives a load in a radial direction and an axial direction from a bead portion of a tire. An annular ridgeof the lock ringcan be received in an annular lock ring grooveof the rim base. A receiving grooveis formed in an inner surface of the lock ring grooveof the rim base. A sacrificial anticorrosion materialis embedded in the receiving groove. The sacrificial anticorrosion materialincludes metal such as zinc and aluminum that has a greater ionization tendency than iron that is a base material of the rim baseand the lock ring. Corrosion of the rim baseand the lock ringcan be suppressed by ionization of the sacrificial anticorrosion material